Downloaded from https://www.everyspec.com MIL-STD-31000A APPENDIX A SELECTION AND ORDERING GUIDANCE A.1 SCOPE. A.1.1 Scope. This Appendix provides guidance for Procuring Activity personnel on the acquisition of the various types of technical data and the completion of the TDP Option Selection Worksheet, Figure 2, and/or TDP Option Selection Worksheet Commercial Drawings/Models and Associated Lists, Figure 3, of this standard. This appendix is not a mandatory part of this standard, however the TDP Option Selection worksheet is mandatory if it forms part of a contract or purchase order. A.2 REQUIREMENTS. A.2.1 General.
Procuring Activities acquiring technical data are required to carefully review their respective needs for technical data and TDP data management products. A.2.1.1 Tailoring. Procuring Activities shall evaluate the cost of data items in relation to their value in the design, production, management, reprocurement, maintenance, logistics support and use of the product. (The DD Form 1423, Block 18, Estimated Total Price, is the means to establish the cost of each data item.) In addition, activities acquiring data shall tailor the requirements for each data product to ensure that the essential data necessary to meet the acquisition programs’ long term needs is acquired.
Tailoring decisions will take into consideration the commercial or military nature of the materiel being procured and its developmental status. Procuring Activities should carefully assess tailoring of data to ensure the necessary level of form, fit and function or detail data is obtained to maximize availability of competitive acquisition and product support alternatives. A.2.2. Selecting and ordering TDP levels . The determination as to the level of TDP should be made based on the nature of the item being procured, the lifecycle phase of the product, and the level of data required by the Procuring Activity. A.2.3. Selecting and ordering Deliverable Data Products .
The determination as to deliverable data products, including 2D drawings, 3D digital models, metadata, associated lists and supplemental technical data should be made based on the nature of the item being procured, the acquisition and support strategies of the item, and the level of design data required to support the product over the lifecycle. A.2.3.1 Two-dimensional (2D) drawings and/or 3D digital models a. Selection. Three-dimensional based TDPs are usually preferred, especially when the item is mechanical in nature, is subject to a significant number of interfaces with other systems, or in which future design upgrades and changes are likely.
2D based drawings, which are derived from 3D solid models, may be required when the TDP is used during the production phase of the lifecycle. b. Ordering. The type and format of drawings/models (2D and/or 3D) required by the Procuring activity for delivery should be identified in the Statement of Work and with the specific formats clearly delineated in the TDP Option Selection Worksheet as part of the CDRL. 26